package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 控制器统一式异常处理
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {
    /**
     * 处理数据校验异常
     * @param e
     * @return
     */
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e){
        BindingResult bindingResult = e.getBindingResult();
        Map<String,String> map=new HashMap<>();
        bindingResult.getFieldErrors().forEach((item)->{
            map.put(item.getField(),item.getDefaultMessage());
        });
        return R.error(BizCodeEnum.VALID_EXCEPTION.getCode(),BizCodeEnum.VALID_EXCEPTION.getMsg()).put("data",map);
    }

    /**
     * 通用异常处理,写在最后面
     * @param throwable
     * @return
     */
    public R handleException(Throwable throwable){

        log.error(throwable.getMessage());
        return R.error(BizCodeEnum.UNKNOWN_EXCEPTION.getCode(),BizCodeEnum.UNKNOWN_EXCEPTION.getMsg()).put("data",throwable);
    }
}
